如何在移动设备中在应用中打开电子邮件

Question

我想在我的电子邮件中集成一个按钮，这样当用户从桌面浏览器点击它时，该按钮就会在浏览器中打开。

如果用户正在通过移动设备查看，则应在​​应用程序中打开。

我该怎么做？

Answer 1

你可以尝试这个：   不要忘记申报其代表。

if ([MFMailComposeViewController canSendMail]) {
        MFMailComposeViewController * emailController = [[MFMailComposeViewController alloc] init];
        emailController.mailComposeDelegate = self;

        [emailController setSubject:subject];
        [emailController setMessageBody:mailBody isHTML:YES];   
        [emailController setToRecipients:recipients];

        [self presentViewController:emailController animated:YES completion:nil];

        [emailController release];
    }
    // Show error if no mail account is active
    else {
        UIAlertView * alertView = [[UIAlertView alloc] initWithTitle:@"Warning" message:@"You must have a mail account in order to send an email" delegate:nil cancelButtonTitle:NSLocalizedString(@"OK", @"OK") otherButtonTitles:nil];
        [alertView show];
        [alertView release];
    }